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A feedback type aging load system and its control method

A technology of load system and control method, which is applied in the direction of instruments, measuring devices, measuring electricity, etc., can solve the problems of aging load power utilization rate waste, cost increase, unimaginable, etc.

Active Publication Date: 2022-04-29
深圳市国电赛思电源技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In fact, the energy regenerative aging load is also a switching power supply. For a wide variety of tested products, if it is necessary to equip an energy regenerative aging load that matches its voltage and power, the workload of this development will be unimaginable. Choose a The energy feedback type aging load with a wide input voltage range to match the tested products with different voltage outputs will inevitably lead to a waste of power utilization of the aging load, and it can work at the nominal maximum power within the full range of design voltage. The cost of the feedback-type aging load will rise sharply, so a solution that can satisfy the optimal cost of the feedback-type aging load and maximize its load utilization is urgently needed.

Method used

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  • A feedback type aging load system and its control method
  • A feedback type aging load system and its control method
  • A feedback type aging load system and its control method

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a feedback type aging load system includes an aging load unit. The feedback type aging load system is composed of an aging load unit, a control switch and an aging load system control unit. The aging load unit is composed of an aging load unit 1, an aging The load unit 2 is composed of the aging load unit 3, the control switch is composed of KB1, KB2, KB3, KB4, KC1 and KC2, the aging load control unit and the aging load unit are connected by communication, and the aging load control unit and The communication connection between aging load units adopts CAN Bus connection, and the aging load control unit controls the combination of KB1, KB2, KB3, KB4, KC1, and KC2 to meet different system aging requirements. Compared with ordinary resistance loads, Its working method is to use the power electronic conversion technology to recycle the output energy of the power supply under test under the premise of completing the test power test, which not only ...

Embodiment 2

[0033] Such as Figure 2-4 As shown, for the convenience of description, there are 3 aging load units in the regenerative aging load system. When the aging power supply is outputting high voltage and low current, the regenerative aging load system switches the aging load units in the system to series mode to improve System voltage output capability, corresponding to Figure 4 The system connection diagram of the aging load control unit closes all the control switches prefixed with KC, that is, KC1 and KC2 are closed, and turns off all the control switches with the prefix of KB, that is, KB1, KB2, KB3, and KB4 are disconnected. The aging load unit is adjusted to be in series mode, i.e. figure 2 As shown in the system connection, when the aging power supply needs to be aged in CV mode, since the aging load unit power supplies in the system are connected in series, it is sufficient to set all the aging load units as voltage sources, that is, to work in CV mode. The CV point of...

Embodiment 3

[0035] Such as Figure 2-4 As shown, for the convenience of description, there are 3 aging load units in the regenerative aging load system. When the aging power supply is outputting high voltage and low current, the regenerative aging load system switches the aging load units in the system to series mode to improve System voltage output capability, corresponding to Figure 4 The system connection diagram of the aging load control unit closes all the control switches prefixed with KC, that is, KC1 and KC2 are closed, and turns off all the control switches with the prefix of KB, that is, KB1, KB2, KB3, and KB4 are disconnected. The aging load unit is adjusted to be in series mode, i.e. figure 2 As shown in the system connection, when the aging power supply requires CC aging, since the aging load unit power supplies in the system are all connected in series, there can only be one aging load unit to control the current of the entire series branch, that is, set it to CC mode , ...

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Abstract

The invention discloses a feedback type aging load system and a control method thereof, comprising an aging load unit, the feedback type aging load system is composed of an aging load unit, a control switch and an aging load system control unit, the aging load unit is composed of an aging The load unit 1, the aging load unit 2 and the aging load unit 3 are composed, and the control switch is composed of KB1, KB2, KB3, KB4, KC1 and KC2. A feedback type aging load system and its control method described in the present invention select several feedback type aging load units according to the voltage and power requirements of the feedback type aging load system, and switch the connection mode of the feedback type aging load units , and with an appropriate control strategy, the regenerative aging load system can easily meet the aging requirements of CC and CV of tested products of different voltages and power levels, bringing better application prospects.

Description

technical field [0001] The invention relates to the application field of feedback type aging load, in particular to a feedback type aging load system and a control method thereof. Background technique [0002] Energy feedback aging load is an energy-saving and environmentally friendly load method. In recent years, more and more enterprises, especially switching power supply manufacturers, have begun to use a large number of regenerative loads for switching power supply testing, production, aging, etc. Link, the energy feedback type load can not only simulate various load characteristics, but also feed back the power grid without pollution, which is an inevitable trend in the development of switching power supply aging methods; [0003] In fact, the energy regenerative aging load is also a switching power supply. For a wide variety of tested products, if it is necessary to equip an energy regenerative aging load that matches its voltage and power, the workload of this develop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38G01R31/00
CPCH02J3/38G01R31/00
Inventor 吴磊涛任曌华
Owner 深圳市国电赛思电源技术有限责任公司